Fuzzy Comprehensive Evaluation of Aging State of Silicone Rubber Sheds of Composite Insulators
Aiming at the aging problem of silicone rubber composite insulators with long-term outdoor operation, a composite insulator condition assessment method is proposed based on fuzzy comprehensive evaluation. From the perspective of silicone rubber shed materials of composite insulators, four first-leve...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
State Grid Energy Research Institute
2021-05-01
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| Series: | Zhongguo dianli |
| Subjects: | |
| Online Access: | https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202010080 |
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| Summary: | Aiming at the aging problem of silicone rubber composite insulators with long-term outdoor operation, a composite insulator condition assessment method is proposed based on fuzzy comprehensive evaluation. From the perspective of silicone rubber shed materials of composite insulators, four first-level indicators, including mechanical performance index, hydrophobic index and electrical performance index, as well as 12 second-level indexes are established. The membership of each index is obtained by constructing the membership function of the evaluation indexes, and the weight of each index is given with the combined weight method of improved analytic hierarchy process (AHP) and entropy weight method. At last, the linear weighting methods is used to calculate the grade status of composite insulators. Case study shows that the proposed model can accurately and efficiently discriminate the state of composite insulators, which can provide a basis for the condition maintenance of composite insulators. |
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| ISSN: | 1004-9649 |